JPH075123B2 - A method for continuously filling fluid into a plurality of fluid-tightly sealed bags for fluid - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of continuously filling a plurality of fluid-sealed bags for fluid continuously with a fluid such as air, and mainly produces and sells a cushioning packaging material. , Which are used in the industrial field.

[0002]

2. Description of the Related Art Conventionally, as a plurality of fluid-sealing bags arranged in series, for example, a device previously filed by the applicant of the present invention is known.
As described in Japanese Patent No. 164142, a flat fluid introduction pipe having a fluid introduction port provided at one end and the other end closed is formed of a plastic film, and a small amount is formed along the fluid introduction direction of the introduction pipe. In addition, a plurality of plastic film sealing bags each having a check valve made of a plastic film mounted on one side edge are continuously connected in parallel, and the introduction pipe and each sealing bag are provided in the check valve. It is configured to be able to communicate with each other via only the flow path, and adjacent sealing bags are integrally connected at their side edges.

[0003]

The fluid-tight bag constructed as described above has various advantages as described in the publication but is not long. Therefore, when filling and sealing a fluid such as air together with the structure, it is necessary to fill all the sealed bags, and it is not possible to fill only the required sealed bag with the fluid depending on the needs at that time. There is a problem and there is a problem that the filling operation cannot be performed continuously.

The present invention was developed and completed with the object of solving the above problems, and when a fluid such as air is filled into a group of sealed bags, the group of sealed bags having a required length can be filled. It is an object of the present invention to provide a method for continuously filling fluid into a plurality of continuous sealed bags for fluid, which has the convenience of being able to continuously perform filling operation at any time.

[0005]

As means for solving the above-mentioned problems and achieving the object, in the present invention, a flat fluid introducing pipe is formed of a plastic film, and the fluid is introduced in the introducing pipe in the introducing direction. Along with this, a series of flat plastic sealing bags made of plastic film, each containing a check valve made of plastic film on at least one side edge, are connected in parallel in parallel, and the inlet pipe and each sealing bag are reversed. In a long sheet-like sealed bag for each fluid, which is constructed so that it can communicate with each other only through the flow path provided in the stop valve, and the adjacent sealed bags are integrally connected at their side edges. A method of continuously filling with a fluid, comprising a step of transferring the long sheet-like sealed bag group toward the front, and a rolling roll at a required position behind the fluid introduction pipe in the sealed bag group. Etc. to pressurize the inlet tube to close it. And a predetermined portion of the fluid introduction device is inserted into the introduction pipe from the front part of the introduction pipe to introduce the fluid into the introduction pipe, and at the same time, the fluid is introduced into the introduction device side by utilizing the transfer action of the sealing bag group. A step of cutting the introduction pipe in the longitudinal direction by the cutting means provided, and a step of filling and sealing the fluid introduced into the introduction pipe into each sealing bag in front of the closed portion of the introduction pipe via each check valve. The present invention has developed and adopted a method for continuously filling a fluid into a plurality of fluid-sealed bags, which are connected in series, which comprises a step of cutting a group of sealed bags having a required length filled and sealed with fluid.

According to the present invention, in the above method,
A flat fluid bag made of plastic film, in which a flat fluid introduction tube is formed of a plastic film, and check valves made of plastic film are installed on both sides of the introduction tube along the fluid introduction direction. In parallel with each other, the introduction pipe and each sealing bag can be separately communicated with each other only through the flow path provided in the check valve, and each adjacent sealing bag is connected at its side edge. Developed a method for continuously filling fluid into a plurality of fluid-sealed bags that are continuously provided, characterized by using a fluid-sealed bag that is integrally provided in series.
Adopted.

Further, in the present invention, in the above-mentioned method and the above-mentioned method, while the long sheet-shaped hermetically sealed bag group is being transferred, the fluid introducing device is appropriately moved rearward and installed on the introducing device side. A method for continuously filling a fluid into a plurality of continuous fluid-sealing bags and a transfer of a long sheet-like sealing bag group characterized in that the introducing pipe is cut in the longitudinal direction by the cutting means described above. The method of continuously filling fluid into a plurality of fluid-sealed bags for fluid, which are characterized by being performed, has been developed and adopted respectively.

[0008]

In the method for continuously filling a plurality of fluid-sealed bags according to the present invention with the above-described structure,
Group A of long sheet-like sealed bags that are transported forward
When the fluid introduction tool 12 is inserted into the introduction pipe 1 and the fluid is introduced into the introduction pipe 1, the rear portion of the introduction pipe 1 is closed and is in a dead end state. The introduced fluid is successively filled and sealed in the plurality of sealing bags 3 existing between the closed portion and the introduction device 12 through the flow paths 4 of the check valves 2.

At this time, the introduction tube 1 is continuously cut in the longitudinal direction by the transfer action of the hermetically sealed bag group A and the cutting means 14 mounted on the introduction instrument 12 side, so that the above-mentioned pressure blockage is performed. It becomes possible to continuously fill the fluid in each of the sealed bags 3 that have passed through the section, and the group of the sealed bags 3b continuously filled with the fluid in this way has a required length in the next cutting step F. It is cut off one after another.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. A method of continuously filling a fluid into a plurality of fluid-sealed sealed bags according to the present invention will be described. , Roughly, a long sheet-like air-sealing bag group A,
A step B of transferring the sealed bag group A toward the front, a step C of pressurizing and closing the air introduction pipe provided in the sealed bag group A,
Air introducing step D into the introducing tube performed between the transferring step B and the closing step C, an introducing tube cutting step E performed simultaneously with the introducing step D, and an air-filled sealed bag group. Is cut into a required length.

The sealed bag group A is shown in FIGS.
In the embodiment shown in FIG. 1, a flat gas introducing pipe 1 is formed of a plastic film, and a plurality of check valves 2 made of a plastic film are installed at one side edge of the introducing pipe 1 along the gas introducing direction. A flat gas sealing bag 3 made of a plastic film is continuously connected in parallel, and the introducing pipe 1 and each sealing bag 3 can be separately communicated through only a flow path 4 provided in a check valve 2. In this embodiment, each of the adjacent sealing bags 3 is integrally connected at its side edge to form a long sheet, which is wound around the winding core 5 to form a roll body. 6 and the winding core 5 is used as the bearing 8 of the suspension 7.
It is configured to be pivotally supported by and to be rotatable and drawn out.

Next, in the transfer step B, the sealed bag group A is held by a pair of upper and lower paired transfer impellers (pinch rolls) 9, 9 which are arranged in front of the roll body 6 with a required space. This impeller 9, 9
In this embodiment, in order to reliably fill the air in the sealed bags 3 having the required length, the motor 10 is intermittently rotated at intervals of some time. Each of the impellers 9 and 9 is sized and designed so that the blades 9a of the impeller 9 and the tip of the impeller 9a hold the continuous portion 3a of the sealing bag 3 and kick it forward to transfer it. When the blade 3b passes between the impellers 9 and 9, it is configured so as not to be damaged by the pressing force.

In the closing step C, the roll body 6 is
And the impellers 9 and 9 for transfer in the transfer step B.
In this embodiment, the surface of the roll is covered with an elastic substance such as sponge or rubber, so that the surface of the group of sealed bags A to be transferred is not damaged and the introduction tube 1 is securely attached to the surface. It can be blocked. The closing members 11, 11 may be provided only at the location of the introduction pipe 1.

In the air introducing step D, the introducing tube 1 is provided slightly behind the impeller 9 in the transferring step B.
Nozzle 1 of introduction device 12 consisting of an air supply device inserted in
Since the air introduced into the introduction pipe 1 is in a dead end state because the rear portion of the introduction pipe 1 is closed, the air is introduced into the introduction pipe 1. And each of the plurality of sealing bags 3 existing between and are continuously and smoothly filled and sealed through the flow paths 4 of the respective check valves 2 to continuously form the filled and sealed bags 3b. is there. Although the setting position of the nozzle 13 of the introduction tool 12 is not limited, it is preferably provided at the tip of the tool 12 and / or at a portion facing the respective sealing bags 3 side.

Next, in this embodiment, the cutting step E of the introduction tube 1 is performed by the transfer action of the hermetically sealed bag group A and the knife 14 projecting from the introduction tool 12.
Since the introduction tube 12 that has abutted against 4 is reliably incised from its cut portion, the transfer action of the sealed bag group A is not hindered at all, and therefore the desired continuous filling of fluid (air) is performed. It can be achieved smoothly and reliably. In addition, usually, the introduction tool 12
Is fixed at a fixed position. However, if the sealing bag group A is slightly moved in the opposite direction to the transfer direction, the incision operation of the introduction tube 1 can be achieved more reliably.

Further, the cutting step F for the group of bags 3a filled with air and sealed is performed by the cutter 15 arranged in front of the impeller 9 in the transferring step B, and the structure of the cutter is itself. Although not particularly limited, it is desirable that the timing be set so that the sealing bags 3 are cut in an orderly manner if possible.

Although one embodiment of the present invention has been described in detail above, according to the above-mentioned embodiment, air can be continuously filled and sealed in each of the consecutive sealed bags 3 and the required length of air can be filled. This has a great advantage that the sealing bag 3b can be cut and provided with high efficiency, and when the filling fluid is air, it can remarkably contribute to the efficient provision of the cushioning packaging material for the cushioning required article.

The steps A, B, and
As an example of a member that can replace the members used in C, D, E, and F, for example, the following case can be considered.

As described in the embodiment, the long sheet-like hermetically sealed bag group A is not limited to the one continuously connected to only one side edge of the introduction tube 1, but as shown in FIG. It may be connected to both side edges of the introduction pipe 1, and in this case,
There is an advantage that it can help improve the production efficiency and can be effectively used as a cushioning material for corners of articles requiring cushioning, for example.

As the transfer means in the transfer step B of the sealed bag group A, transfer means other than the impeller 9 can be adopted, and the means is limited as long as the sealed bag 3b filled with the fluid is not damaged. Not a thing.

Closing member 1 in closing step C of introducing pipe 1
In the first example, instead of the pair of rolling rolls, a pressure plate, a pressure belt, etc. can be appropriately adopted within a range that does not hinder the transfer of the sealed bag group A.

As the cutting means provided in the introducing device 12 in the fluid introducing step D, other cutting means including a heat fusing means can be adopted instead of the knife 14.

As the cutting means in the cutting step F, a roll cutter or other cutting means can be appropriately selected and used in place of the vertically movable cutter illustrated in the embodiment drawings.

Although the main embodiments of the present invention have been described above in detail, the present invention is not limited to the above embodiments, and the objects of the invention can be achieved and the scope of the invention is not deviated. It goes without saying that various design changes are possible.

[0025]

As is clear from the above description, according to the present invention, the following excellent effects can be achieved.

(1) Since the rear part of the introduction tube is closed and is in a dead end state, the fluid introduced into the introduction tube is successively filled in a plurality of sealed bags existing between the closed part and the introduction device. It is surely filled and sealed, and the fluid sealing work can be achieved with high efficiency.

(2) Since the introduction tube is automatically and continuously cut in the longitudinal direction by the transfer function of the sealed bag group and the cutting means installed on the introduction instrument side, it passes through the closed portion of the introduction tube. The fluid can be continuously filled in each sealed bag, and the desired continuous fluid filling operation can be smoothly and reliably achieved.

[Brief description of drawings]

FIG. 1 is a partially omitted plan view schematically showing a line of all steps of a continuous filling method of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a vertical side view with a part omitted along the line III-III in FIG. 1.

FIG. 4 is an enlarged perspective view of a main part showing a cut-out state of the introduction tube.

FIG. 5 is a perspective view showing a part of a bag group in which a fluid is filled and sealed.

FIG. 6 is a plan view showing a part of another example of a long sheet-shaped hermetic bag group.

[Explanation of symbols]

 A Sealing bag group B Transferring process of sealing bag group C Closing process of introducing pipe D Fluid introducing process E Cutting process of introducing pipe F Cutting process of bag group sealed with fluid 1 Introducing pipe 2 Check valve 3 Sealing bag 3b Fluid 4 a flow path of a check valve 9 a transfer means for a sealed bag group 11 a means for closing an introduction tube 12 a device for introducing a fluid 14 a cutting means for an introduction tube 15 a means for cutting a group of bags filled with a fluid

Claims (4)

[Claims] 1. A plurality of plastic films in which a flat fluid introducing pipe is formed of a plastic film, and check valves each made of a plastic film are provided on at least one side edge of the introducing pipe along the fluid introducing direction. Made of flat fluid-tight bags for fluids that are integrally connected in parallel, and are configured so that the introduction pipe and each of the air-tight bags can communicate with each other only through the flow path provided in the check valve, and they are adjacent to each other. A method of continuously filling a fluid into a long sheet-shaped sealing bag for fluid, which is formed by continuously connecting the respective sealing bags at their side edges, wherein The step of transferring the fluid into the sealed bag group by pressing a required portion of the rear portion of the fluid introduction tube in the sealed bag group with a rolling roll or the like to close the introduction tube, and from the front portion of the introduction tube to the inside of the introduction tube. Insert the required part of the fluid introduction device into the Introducing a fluid into the inside, cutting the introduction tube in the longitudinal direction by a cutting means installed on the introduction instrument side by using the transfer action of the sealed bag group, and the fluid introduced into the introduction tube It is characterized by comprising a step of filling and sealing each sealing bag in front of the closed portion of the introduction pipe via each check valve, and a step of cutting a sealing bag group of a required length filled and sealed with fluid. A method for continuously filling a fluid into a plurality of fluid-tightly sealed bags for fluids. 2. A plurality of flat films made of plastic film in which a flat fluid introduction pipe is formed of a plastic film, and check valves made of the plastic film are respectively installed on both side edges of the introduction pipe along the fluid introduction direction. A plurality of fluid-sealing bags are arranged in parallel in an integrated manner, and the introducing pipe and each sealing bag can be separately communicated with each other only through the flow path provided in the check valve. 2. A method for continuously filling a fluid into a plurality of continuously-sealed fluid-sealing bags according to claim 1, characterized in that a fluid-sealing bag is integrally formed at its side edges. 3. An introductory tube is cut in the longitudinal direction by appropriately moving a fluid introducing device rearward during the transfer of a long sheet-shaped hermetically sealed bag group, and by cutting means installed on the introducing device side. The method for continuously filling a fluid into a plurality of consecutive fluid-sealed bags for fluid according to claim 1 or 2. 4. The long sheet-like hermetically sealed bag group is intermittently transferred, so that the fluid can be transferred into the plurality of fluidly sealed hermetically sealed bags arranged in series according to claim 1 or 2. Continuous filling method.